A suspension arrangement for a vehicle, in particular a utility vehicle having a base and a structure, is disclosed. This arrangement includes at least one first spring and at least one second spring, the at least one first spring and the at least one second spring having spring attachments which are connected to attachment apparatuses of the structure on one side and of the base on the other. The at least one second spring is fastened to the base by way of at least one adjustment device. An adjustable air spring suspension arrangement and methods for controlling the suspension arrangements are disclosed.

A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.

A suspension arrangement for a vehicle, in particular a utility vehicle having a base and a structure, is disclosed. This arrangement includes at least one first spring and at least one second spring, the at least one first spring and the at least one second spring having spring attachments which are connected to attachment apparatuses of the structure on one side and of the base on the other. The at least one second spring is fastened to the base by way of at least one adjustment device. An adjustable air spring suspension arrangement and methods for controlling the suspension arrangements are disclosed.

A suspension control system can include a chassis and a suspension component operably coupled with the chassis. A boom assembly can be operably coupled with the chassis. One or more sensors can be configured to generate data indicative of a chassis orientation or boom assembly orientation relative to a level axis. A computing system can be communicatively coupled to the one or more sensors. The computing system can be configured to calculate an offset angle based on data from the one or more sensors, compare the offset angle to a defined correction threshold, and generate instructions to actuate the suspension component to lower the suspension component relative to a ground surface by a correction factor when the offset angle exceeds the defined correction threshold.

A control unit for a level control device of a mechanically and/or pneumatically/hydraulically suspended vehicle includes a control device configured to control the level and a sensor device installed in the vehicle and/or are functionally expanded such that in addition to the level control or in lieu of the level control, functions can be added for ascertaining the load on mechanically suspended axles and on pneumatically/hydraulically suspended axles. An interface is configured to receive signals from sensors suitable at least for ascertaining the load on mechanically suspended axles. The control unit has a first storage for sensor-specific characteristic curves and a second storage for an algorithm for processing or reprocessing the signals forwarded or processed using the interface. For each stored sensor type, the current load on the mechanically suspended axle in question can be ascertained by correlating the signal with the characteristic curve for the sensor type.

A robot and a robot control method are provided. The robot includes: a robot body, a pose detector being mounted on the robot body; a chassis body provided at a bottom of the robot body; a moving assembly connected to the robot body through a suspension shock absorber, the moving assembly being further connected to a controllable damping rotating shaft, and rotationally connected to the chassis body through the controllable damping rotating shaft; and a controller electrically connected to the pose detector and the controllable damping rotating shaft, respectively, and used to control the controllable damping rotating shaft to change rotational resistance according to pose information of the robot detected by the pose detector.

A hydraulic suspension system for a motor vehicle having at least a pair of road engaging wheels. The suspension system includes, a hydraulic cylinder coupled with the each of the pair of road engaging wheels, the hydraulic cylinder defining a cap end volume and a rod end volume separated by a piston. A hydraulic supply circuit for the hydraulic cylinder includes, a high pressure hydraulic source, a low pressure hydraulic drain, a pair of hydraulic sub circuits each coupled to one of the hydraulic cylinder cap and rod end volumes. Each hydraulic sub circuit includes, a proportional supply flow valve coupled with the high pressure hydraulic source and one of the cylinder volumes, a return flow control proportional valve coupled with the low pressure hydraulic drain and the one cylinder volume, and an accumulator coupled to the associated hydraulic cylinder volume through an accumulator fill control proportional valve.